I saw a visual image of this optimization algorithm on the CS231n course page. But I'm not sure how to draw it. I'd like to refer to your source code. Thank you very much.

I saw a visual image of this optimization algorithm on the CS231n course page. But I'm not sure how to draw it. I'd like to refer to your source code. Thank you very much.[http://cs231n.github.io/neural-networks-3/#sgd](url)